Get a timer, and just sit there for 30 seconds. It might not sound like a lot of time, but when you actually feel how long it takes, you'll see. 30 seconds fits for between songs. Maybe they do a little longer, but I bet they don't talk between EVERY song. So it averages out.

As a working drummer. I know what 30 seconds on stage feels like...

You're still insane.

Why call out their supposed bullshit here? Go to their forum (if they are active on it) and call them out. They're aren't going to come here. And if they do actually change things up because of what YOU said, they won't exactly be the smartest band around if they can't think for themselves in the first place.

They are international touring band, You don't think they know how to run a show?